using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        // set the customer capabilities that will be tested

        var customerCapability = TestFlags.DDC | TestFlags.HOTEL;

​

        // demonstrate

        AddMessage($"Customer has HOTEL: {customerCapability.HasFlag(TestFlags.HOTEL)}");

        AddMessage($"Customer has SALON: {customerCapability.HasFlag(TestFlags.SALON)}");

​

        // list all capabilities the customer has

        var allCapabilities = new List<TestFlags>();

        foreach(TestFlags flag in Enum.GetValues(typeof(TestFlags)))

        {

            if(customerCapability.HasFlag(flag))

                allCapabilities.Add(flag);

        }

​

        AddMessage($"Customer has the following capabilities: {string.Join(", ", allCapabilities)}");

    }

​

​

    public static void AddMessage(string message) 

    {

        Console.WriteLine(message); 

    }

}

​

[System.Flags]

public enum TestFlags

{

    SALON       = 1,

    DDC         = 1 << 1,

    HOTEL       = 1 << 2,

    SERVICES    = 1 << 3

}